Characters played by Kwang-Soo Lee
Park Goo
Characters played by Cheon-hee Lee
Sang-Won
Characters played by Park Bo-Young
Joo-Jin
Characters played by Kang Bong-Sung
Woo Moon-Gi
Characters played by Jae-Hyun Choi
Unmasker
Characters played by Ji-ho Choi
hairman's Secretary
Characters played by Jang Gwang
Park Goo's dad
Characters played by Kook-jin Han
Restroom man
Characters played by Kim Hee-won
Lawyer Kim
Characters played by Hye-jin Jeon
Documentary narration
Characters played by In-gi Jeong
Dong-Sik
Characters played by Park Ji-Yeon
Reporter 1
Characters played by Kwang-Hyun Joo
Sexual Minority 2
Characters played by Jin-ah Kang
Nurse
Characters played by Byung-Joon Lee
Dr. Byun
Characters played by Chang-Hoon Lee
Researcher 1
Characters played by Ji-Hoon Lee
Pharmaceutical executive
Characters played by Gye-nam Myeong
Chairman
Characters played by Chang-Kyung Oh
Pseudo priest
Characters played by Sung-Il Park
Labor Union Executive
Characters played by Sung-Chan Son
Veterinarian
Characters played by Yoo Soon-woong
PhD Joo Ho-Chang